--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Implab.Diagnostics.Interactive/TraceForm.cs	Thu Apr 17 03:05:53 2014 +0400
@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace Implab.Diagnostics.Interactive {
+    public partial class TraceForm : Form {
+        public TraceForm() {
+            InitializeComponent();
+        }
+
+        protected override void OnFormClosing(FormClosingEventArgs e) {
+            base.OnFormClosing(e);
+            if (!e.Cancel && e.CloseReason == CloseReason.UserClosing) {
+                e.Cancel = true;
+                Hide();
+            }
+        }
+    }
+}